[Eurytus]

I am going to choose a comparatively low key one. That of Frodo actually deciding to leave the fellowship. Imagine it, setting out on your own into a dangerous land, knowing that you are going to the most dangerous place in that land. And moreover, that you lack even the most basic skills in self defence.
That’s really tough. I think to be really brave you have to be really scared first. Bravery is in overcoming that fear. Frodo had more to be afraid of at that point than nearly anyone.

But if you include the histories then I think that Beren and Luthien are pretty near the top.

And perhaps he didn’t know much about the risk but I always thought that Fatty Bolger impersonating Frodo was pretty brave, as was his escape from the Black Riders.